Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.15 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc4 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1739073 Title: 'Synaptics Touchpad' incorrectly detected as PS/2 mouse in 'Lenovo Thinkpad x120e AE' suddenly Status in linux package in Ubuntu: Incomplete Bug description: 1.Laptop model: LENOVO Thinkpad x120e 0611-AE5 2.Manufacturer of the Touchpad: Synaptics 3.When the symptom first appeared: around 3 month ago (August 2017) I first encountered this issue after dual boot Linux Ubuntu-MATE 16.04 LTS and Windows 10. My system always update. Touchpad suddenly not working when the laptop woke up from sleep in Windows 10 OS. Tried to add parameters in GRUB: quiet splash i8042.reset i8042.nomux=1 i8042.nopnp=1 i8042.noloop=1 without any positive result (touchpad still not working), but, now xinput detect PS/2 Generic Mouse for touchpad (before touchpad is not detected at all). Attached dmesg and devices file. Thanks. Regards, ariefcfa --- ApportVersion: 2.20.1-0ubuntu2.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: mariefhidayat 1471 F.... pulseaudio /dev/snd/controlC0: mariefhidayat 1471 F.... pulseaudio CurrentDesktop: MATE DistroRelease: Linux 18.3 InstallationDate: Installed on 2017-12-15 (4 days ago) InstallationMedia: Linux Mint 18.3 "Sylvia" - Release amd64 20171124 MachineType: LENOVO 0611AE5 Package: linux (not installed) ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-38-generic root=UUID=1c01f4dc-5d5e-48d7-b66f-dd8e5b84060a ro quiet splash i8042.reset i8042.nomux=1 i8042.nopnp=1 i8042.noloop=1 vt.handoff=7 ProcVersionSignature: Ubuntu 4.10.0-38.42~16.04.1-generic 4.10.17 RelatedPackageVersions: linux-restricted-modules-4.10.0-38-generic N/A linux-backports-modules-4.10.0-38-generic N/A linux-firmware 1.157.14 Tags: sylvia Uname: Linux 4.10.0-38-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/07/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 8FET33WW (1.17 ) dmi.board.asset.tag: Not Available dmi.board.name: 0611AE5 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8FET33WW(1.17):bd11/07/2012:svnLENOVO:pn0611AE5:pvrThinkPadX120e:rvnLENOVO:rn0611AE5:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 0611AE5 dmi.product.version: ThinkPad X120e dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1739073/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp